Răspuns:
832:8+[40+8×(100:5-72:4)]×10
832:8+[40+8X(20-18)]X10
832:8+(40+8X2)X10
832:8+(40+16)X10
832:8+56X10
832:8+560
104+560
664
25+6x[107-100:(8-3)]-9x19=
25+6x(107-100:5)-9x19=
25+6x(107-20)-9x19=
25+6x87-9x19=
25+522-171=
547-171=
376
1+3×[3+8×(7-3)+3(5+6)]=
1+3×[3+8*4+3*11]=
1+3×[3+32+33]=
1+3×68=
1+204=
205
275-(199-198+100)+22]:4=
(275-101+22):4=
196:4=49
5+[7+3×(7-2)]:2-6=
5+(7+3×5):2-6=
5+(7+15):2-6=
5+22:2-6=
5+11-6=10
9+8x[7+6x(5+12)-2]-100=
9+8x(7+6x17-2)-100=
9+8x(7+102-2)-100=
9+8x(109-2)-100=
9+8x107-100=
9+856-100=
865-100=765
[(36-36:2×0)+(6×7-4×9)]:7=
=[(36-18×0)+(42-36)]:7=
=[(36-0)+ 6]:7=
=(36+6):7=
=42:7=6
(9×8+13):[5×4:(3+2)+1]=
=(72+13):(20:5+1)=
=85:5=
=17
6+3×[18:3-3×(4-3)]:9
6+3×[6-3×1]:9
6+3×[6-3]:9
6+3×3:9
6+9:9
6+1
7
